[fix] fix get_servo_version

Author: vimior

xarm/x3/servo.py

@@ -352,11 +352,11 @@ def _get_servo_version(id_num):
                 ret1 = self.arm_cmd.servo_error_addr_r32(id_num, 0x0801)
                 ret2 = self.arm_cmd.servo_error_addr_r32(id_num, 0x0802)
                 ret3 = self.arm_cmd.servo_error_addr_r32(id_num, 0x0803)
-                if len(ret1) > 1:
+                if len(ret1) > 1 and abs(ret1[1]) < 1000:
                     ret1[1] = ret1[1] >> 16
-                if len(ret2) > 1:
+                if len(ret2) > 1 and abs(ret2[1]) < 1000:
                     ret2[1] = ret2[1] >> 16
-                if len(ret3) > 1:
+                if len(ret3) > 1 and abs(ret3[1]) < 1000:
                     ret3[1] = ret3[1] >> 16
             else:
                 ret2 = self.get_servo_addr_16(id_num, 0x0802)